SN65-type fire hydrant Product Name: SN65 type fire hydrant Model: SN65-F Product Features: Depending on the installation within the tooth structure is divided into two outer teeth. Product Information: Indoor fire hydrant is installed inside a building fire pipe-line to fire water interface with the valve. It is a factory, warehouse, high-rise buildings, and ships and other indoor fixed fire-fighting equipment for fighting fires in buildings, usually installed in the hydrant box, supporting the use of fire hose and gun and so on.